Toolbox history and revisions

• Directory PublishedResults created to reproduce results from published articles.
• Semi-blind implementation of quadratic contrast functions.
• Gradient and improved gradient optimization of quadratic/kurtosis contrast functions.

• Cubic contrast functions have been implemented.
• Optimal step size for kurtosis gradient implemented.
• Bug fixes.

• Quadratic contrast functions have been implemented.
• The source subtraction in the deflation procedure has been simplified and improved.
• Many changes to obtain compatibility with programs implementing quadratic contrast functions. This should allow more modularity in the future.

• Correction of the extracted source signal (memory allocation bug).
• Improvement of the complex/real signal detection.
• Improvement of the source signal extraction.

• An estimator of the cyclic frequencies of the observation signals has been added to the script.
• The cyclic frequencies of the first kind of demonstration signal (foetus ECG signals) have been updated and stored in the file FreqCycl.dat.
• You can pass external cyclic frequencies to the demonstration script: you need to use a global variable named FreqCycl.
• When estimating the cyclic frequencies, leaving the edit field blank make the script crash. This bug has been fixed.
• The estimated contribution are not sorted. Therefore, the estimated contribution of source 1 on sensor 1 was the estimated contribution of the first extracted source on sensor 1. This has been fixed.
• You can now use your the graphical interface to separate own mixture.
• Publication of the toolbox on the ICA list.